- 1
When Yellow met Blue
When she paints a yellow sun on a blue sky, Luna learns how to make the color green.
- 2
Do Fish drink Water?
A day at the beach gets the kids wondering: Do fish drink water?
- 3
Twinkle twinkle Little Star
It's an interstellar adventure as Luna and friends find out why stars twinkle.
- 4
Martians, Martians, Martians
The gang become robots to explore the surface of the planet Mars.
- 5
The Waggle Dance
After the ballet, Luna notices bees communicating through dance.
- 6
Banana Seeds
Luna wants to plant a banana tree, but where are a banana's seeds?
- 7
On the Rings of Saturn
After discovering Saturn's rings, Luna and the gang wonder if they can walk on them.
- 8
The Tale of Kale
Luna and friends investigate the mystery of some missing kale.
- 9
That Just Rained Smell
To learn about that fresh, just-rained smell, Luna, Jupiter and Clyde become radishes.
- 10
How Water Became Rain
Luna becomes a water drop to learn how water becomes rain.
- 11
Luna's Lunar Quest
A howling dog and a full moon send Luna and friends to the lunar surface.
- 12
Mirror, Mirror on the Wall
Foggy mirrors in Luna's house get her thinking about condensation.
- 13
In Clyde's Eyes
Clyde's grooming day gets the gang wondering what the world looks like through an animal's eyes.
- 14
Strong as an Ant
Luna and friends discover that ant colonies rely on strength and teamwork.
- 15
Shooting Stars
The gang sees an amazing backyard sight: a shooting star!
- 16
Ice Giants
When Clyde's toy boat sinks, the friends get curious about icebergs.
- 17
As the Bread Rises
Munching on delicious rolls at the bakery, Luna wonders what turns dough into such a fluffy treat.
- 18
Luna Saurus Rex
The gang checks out the zoo's new dinosaur exhibit.
- 19
Butterfly Feet
Luna and friends notice interesting butterfly habits.
- 20
Wings of a Bird
Luna investigates how birds fly after discovering a nest in her garden.
- 21
It All Falls Down
A dropped ice cream cone and Igor's astronaut sticker album makes the gang wonder about gravity.
- 22
Flying Lights
The friends become intrigued by lightning bugs.
- 23
A Snail Tale
While playing with a pet snail, Luna wonders what it's like inside her shell.
- 24
Nighty Night, Sun
A sunset inspires the gang to find out where the sun goes at night.
- 25
Reaching the Rainbow
A rainbow inspires the kids to learn more about the "why" behind it.
- 26
The Sinking Grape
A lost orange leads Luna and friends to the concept of flotation.
- 27
Blowing Bubbles
Luna and Jupiter wonder why bubbles are always round.
- 28
Drawings in the Sky
The gang must become stars in space to learn how to find constellations.
- 29
A Cat's Whiskers
Finding a lost kitten, Luna and Jupiter question why cats have whiskers.
- 30
Up, up and Away
The gang turn into hot air balloons to learn how they stay up in the sky.
- 31
Salt of the Sea
Watching fish at the pet shop, the friends want to know why salt water is salty.
- 32
Great Craters!
Wondering how the moon's "holes" formed, the kids discover craters.
- 33
Do Re Me Fa-lute
Jupiter and his friends ask how his new pan flute makes noise.
- 34
Gecko Glue?
A gecko lizard in the kitchen sparks the question of how it sticks to surfaces.
- 35
Snow Day
A snow day encourages the gang to question what snow is.
- 36
Popcorn A-Poppin'
Luna and Jupiter try to determine how a kernel of corn pops into their favorite treat.
- 37
A Tale of Tails
The kids become critters and ask the question: Why do animals have tails?
- 38
Flowers & Fruit
The gang is surprised to learn that oranges start out as flowers.
- 39
Spinning Webs
After finding webs in the backyard, the friends explore how spiders make them.
- 40
One Thunder, Two Thunder, Three!
Luna teaches her dad's trick for determining the distance of a storm.
- 41
A Dog's Paws
The gang witnesses some strange behavior from Dr. Jane's dog, Snowball.
- 42
The Superstar
Luna and friends wonder if the sun is a planet, but they think it's not.
- 43
Camouflage
When they can't find Clyde, the friends find themselves thinking about camouflage.
- 44
How old Are You?
Clyde's birthday inspires the gang to figure out how old a tree is.
- 45
The Wonderful Forest of Chocolate
After learning that chocolate comes from a tree, Luna and friends have to know more.
- 46
Silkworms
A gift from China inspires the kids to learn about silk.
- 47
Slip-sliding Along
The friends turn into toy cars to experience moving across different surfaces.
- 48
Shadows
The gang learns about shadows and makes some fun experiments.
- 49
Echo-echo-echo
Luna and friends discover what an echo is while walking through a tunnel.
- 50
Roly Poly Fun
The gang learns about the roly poly bug and why it curls up into a ball.
- 51
Pretty Bird
A neighbor's parrot soon has the gang pretending to be pirates at sea.
- 52
One Thing Becomes Another
A plastic yogurt cup inspires Luna and friends to learn more about recycling.
- 53
Episode 53
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Episode 54
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Episode 55
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Episode 56
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Episode 57
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Episode 58
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Episode 59
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Episode 60
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Episode 61
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Episode 62
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Episode 63
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Episode 64
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Episode 65
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Episode 66
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Episode 67
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Episode 68
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Episode 69
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Episode 70
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Episode 71
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Episode 72
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Episode 73
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Episode 74
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Episode 75
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Episode 76
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Episode 77
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Episode 78
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Episode 79
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Episode 80
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Episode 81
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Episode 82
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Episode 83
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Episode 84
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Episode 86
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Episode 87
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Episode 88
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Episode 89
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Episode 90
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Episode 91
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Episode 92
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Episode 94
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Episode 96
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Episode 97
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Episode 98
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Episode 99
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Episode 100
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Episode 101
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Episode 102
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Episode 104
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Episode 105
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Episode 106
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Episode 107
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Episode 108
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Episode 109
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Episode 110
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Episode 111
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Episode 112
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Episode 116
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Episode 117
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Episode 118
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Episode 119
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Episode 120
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Episode 121
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Episode 122
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Episode 123
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Episode 124
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Episode 125
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Episode 126
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Episode 127
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Episode 128
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Episode 129
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Episode 130
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Episode 131
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Episode 132
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Episode 134
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Episode 135
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Episode 136
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Episode 137
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Episode 138
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Episode 139
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Episode 140
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Episode 141
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Episode 142
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Episode 143
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Episode 144
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Episode 145
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Episode 146
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Episode 147
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Episode 148
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Episode 149
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Episode 150
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Episode 151
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Episode 152
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Episode 153
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Episode 154
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Episode 155
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Episode 156